Thermocouple Conversion Module

Transcription

1 No.SS (Rev. 1) SystempaK (Digital/Single Case) Thermocouple Conversion Module Model J-STP 90/95 Introduction The Thermocouple Conversion (J-STP) Module is a signal conversion module housed in a single case and accepts an electromotive force of thermocouple input, and converts it into a 1 to 5V DC or 4 to 20 ma DC signal. The Thermocouple Conversion Module provides a linearization function as a standard function to obtain a linear output proportional to the measured temperature, as well as a filter function to convert input and output signals in response to the application. The J-STP is available for one-output (J-SMP90) or two-output (J- SMP95) model. Kind of thermocouple, range, filter function changes, and such other setting changes are easily done with the dedicated Loader Software, which operates on a general-purpose PC. Complete isolation is employed between the power, input, and output circuits. In the two-output model, isolation is employed also between the two output circuits. Specification Input signal: Thermocouples Types R, S, B, K, E, J, T, N (IEC / JIS C ) WRe5-26 (ASTM-E (2002)) Measuring range: T/C type Measuring range R -50 to 1760 S -50 to 1760 B 0 to 1820 K -200 to 1370 E -200 to 1000 J -210 to 1200 T -200 to 400 N -270 to 1300 WRe to 2700 ±120% settable Span: Specifiable to a desired span within the measuring range. Contact us for ranges less than (Because thermocouple electromotive changes are extremely small.) Burnout protection: Upscale/Downscale (Specify when ordering.) Burnout response: 30 sec or less (Moving average available, first-order lag filtering: 0.1 sec) Output signal: No. 1 output; 1 to 5V DC or 4 to 20 ma DC No. 2 output; 1 to 5V DC (Between No. 1 and No. 2 outputs is isolated.) Edge connector output; 1 to 5V DC (No. 1 output must be 1 to 5V DC when connecting the signal with the A-MC I/O cable.) Output impedance: Voltage output; 250 Ω or less, Current output; 250 kω or more Output range: -20 to +120%FS Allowable load resistance:0 to 600 Ω (Current output: Up to +110%) Output update interval: 5 msec (Output hardware filter: 0 to 90% response, 50 msec) Input/output response: 160 msec at minimum, 0 to 90% response (Moving average and first-order lag filtering are not provided.) Accuracy: Input span No. 1 and No. 2 output 10 mv or more ±0.15%FS less than 10 mv Input accuracy shown in separate table + CJC accuracy Cold junction compensation accuracy; ±0.5 at 23 (Other than R, WRe) ±1.0 at 23 (R, WRe) Insulation resistance: 500V DC, 100 MΩ min (Mutual between input - output - GND - power terminal) Withstand voltage: 1000V AC, 1 min (Mutual between input - output - GND - power terminal) +10 Power supply: 24V DC -15% Current consumption: 130 ma or less (at 24V DC) Ambient temperature: Normal operating condition; 5 to 45 Operation limit; 0 to 50 Ambient humidity: 0 to 90%RH (No condensation allowed) Mounting: Panel, Wall, DIN rail mounting Front mask color: Black Weight: 400 g Operating influence: Cold junction compensation accuracy;±0.5 /10, 5 to Supply voltage effect; ±0.1%FS/24V DC -15 % Temperature effect; Input accuracy shown in separate table/10 1

2 Loader settings: Module ID; 16 one-byte characters, 8 two-byte kanji characters Input type; Specify thermocouple type. Unit of temperature;, F Input range; Lo and Hi setting values Linearization table; 101 points Input filtering; Disabled/Enabled (moving average) Zero-span adjustment; Adjustable between -20 and +120%FS First-lag filtering; Without/With (0 to 20.0 sec, 63% response time) Note: Burnout protection (Upscale/Downscale) is specified by hardware. Please specify it when ordering. Default setting is Upscale unless specified otherwise. 2

3 Table Input Accuracy Thermocouple Full-scale set Input accuracy % to span temperature K 250 or more ±0.15% Measurement full-scale set temperature [ ] / Set span range [ ] Less than 250 ±0.15% 250 / Set span range [ ] J 200 or more ±0.15% Measurement full-scale set temperature [ ] / Set span range [ ] Less than 200 ±0.15% 200 / Set span range [ ] T 250 or more ±0.15% Measurement full-scale set temperature [ ] / Set span range [ ] Less than 250 ±0.15% 250 / Set span range [ ] E 200 or more ±0.15% Measurement full-scale set temperature [ ] / Set span range [ ] Less than 200 ±0.15% 200 / Set span range [ ] R 1000 or more ±0.15% Measurement full-scale set temperature [ ] / Set span range [ ] (Measurement value less than 500 is not applied with the accuracy specification) Less than 1000 ±0.15% 1000 / Set span range [ ] (Measurement value less than 500 is not applied with the accuracy specification) WRe5-26 ±0.15% Measurement full-scale set temperature [ ] / Set span range [ ] CJC accuracy CJC base accuracy (Measurement value less than 700 is not applied with the accuracy specification) Additional accuracy Other than R, WRe ±0.5 (at 23 ) CJC temperature effect ±0.5 / 10, 5 to 45 R, WRe ±1.0 (at 23 ) CJC temperature effect ±0.5 / 10, 5 to 45 PC loader Communication connector Thermocouple + - Burnout circuit Analog input processing circuit Digital processing section Isolation circuit Isolation circuit No.1 output circuit No.2 output circuit CJC sensor CJC Cold junction compensation temperature detection circuit Power circuit Figure 1. Functional block diagram of thermocouple conversion module 3

4 Model Number Table One-output model Basic model number Selections Additions Description I II I J-STP90 Thermocouple Conversion Module (1-output) X No varnish coated C Varnish coated -T Input signal: Thermocouple (Type T) -J Input signal: Thermocouple (Type J) -K nput signal: Thermocouple (Type K) -E Input signal: Thermocouple (Type E) -R Input signal: Thermocouple (Type R) -S Input signal: Thermocouple (Type S) -B Input signal: Thermocouple (Type B) -N Input signal: Thermocouple (Type N) 1 Output signal: 1 to 5V DC 2 Output signal: 4 to 20 ma DC -0 Without test report -1 With test report Two-output model Basic model number Selections Additions Description I II I Thermocouple Conversion Module (2-output) No varnish coated Varnish coated Input signal: Thermocouple (Type T) Input signal: Thermocouple (Type J) Input signal: Thermocouple (Type K) Input signal: Thermocouple (Type E) Input signal: Thermocouple (Type R) Input signal: Thermocouple (Type S) Input signal: Thermocouple (Type B) Input signal: Thermocouple (Type N) No. 1 output signal: 1 to 5V DC, No. 2 output signal: 1 to 5V DC No. 1 output signal: 4 to 20 ma DC, No. 2 output signal: 1 to 5V DC Without test report With test report Example: J-STP95X-J1-1 4

5 5

6 (standard accesary) (standard accesary) 6

7 MEMO 7

8 Note: Thermocouple Types S, B, and N will become available for sale at timings that differ from those of other types. When ordering, please check with our sales representative. When ordering, please specify: 1) Tag number 2) Input range* [Default setting differs depending on thermocouple type.] 3) Burnout (Upscale, Downscale) [Set to Upscale by default] The following are also set by default: a) Input filtering: Moving average available b) First-order lag filtering: Available, 0.1 sec * Use the quick list below when specifying the range. Ranges other than those below are also accepted. Code No. Input range 01 0 to to to to to to to to to to nd edition: Jan